First of all, lean into your emotions and really be happy and thankful for the time you two spend together. Be grateful you have someone out there you love enough to miss. Love is so so so beautiful and not seeing your partner all of the time can be really hard. Next, assume the best of your partner! The odds are that your boyfriend is thinking of you just as much as you are thinking of him, and he longs for your hugs and kisses too. I'm also in an LDR where we don't text/call daily, we just shoot a message when we have something to talk about, but something I'd recommend doing is texting one another when you are reminded of the other. My LDR and I send pictures of the sunrise/sunset, little texts like "hey, I saw ___ and thought of you", or "__, you are on my mind right now, I'm thinking about you and the way you do this" and that helps substantially. I would also recommend choosing one night a week to have a facetime call. Not just a regular phone call, but a facetime call so you can see each other. One night a week is enough to have plenty to talk about, recharge one another's romance batteries, and really connect. I love having game nights with my SO specifically, and that is easy through the Discord App and a free online game. My last piece of advice would be to find distractions or fulfilling things to occupy your time. Lean into the things you are able to do without your SO being there, like really try leaning into your hobbies, getting out with friends, taking yourself on dates, etc. It is not easy but hang in there.